Author Topic: Viewport slow with Cosmos open  (Read 2312 times)

2025-02-03, 14:37:52
Reply #15

Erik1974

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Than why doesn't it happen when i close Cosmos? Can you explain this?

Do you have Cosmos open on different monitor than 3ds Max? Do you have different scaling on both monitors?
If you take any 3ds Max dialog (for example "Render Setup") and move it to another monitor with different scaling, you will get the same issue.
I am guessing both 3ds Max and Cosmos use the same UI framework and it glitches in the same way.


I just tried it with the render setup on the second monitor and no lagging occurs. I do have different scaling (that is the issue we found before). I am talking about the lagging here, not the pulldown menu's having different scaling.

2025-02-03, 14:41:54
Reply #16

xoio

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Quote
3ds Max issue is "UI items appear in wrong places/wrong scale", not "viewport laggy when using Cosmos".
Regarding the laggy viewport - what is your CPU model? Is this happening in any scene? (even empty?)

It only appears in more heavier scenes with lots of polys.
CPU: AMD Ryzen 5950X 16 Core
GPU: RTX 4060

2025-02-05, 18:26:41
Reply #17

maru

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For Erik1974 the issue of lagging when the Cosmos window is open was fixed by installing the newest version of Corona (Corona 12 Update 1 Hotfix 1) - https://www.chaos.com/corona/download
Marcin Miodek | chaos-corona.com
3D Support Team Lead - Corona | contact us